|| A 10 m14 m house is built on a 12-cm-thick concrete slab.
What is the heat-loss rate through the slab if the ground temperature
is 5C while the interior of the house is 22C?
The power needed is 15.9 kW
For thermal conduction,
where dQ is the heat transferred in dt and dt is the time differential. If the time difference is unit,
As our surface is rectangular, A=ab, where a and b are the dimensions of the floor. So,
Shows two different processes taking an ideal gas from state i to state f.
a. Is the temperature change ∆T during process A larger than, smaller than, or equal to the change during process B? Explain.
b. Is the heat energy added during process A greater than, less than, or equal to the heat added during process B? Explain.
A beaker with a metal bottom is filled with of water at . It is brought into good thermal contact with a container holding of a monatomic gas at pressure. Both containers are well insulated from their surroundings.
What is the gas pressure after a long time has elapsed? You can assume that the containers themselves are nearly massless and do not affect the outcome.
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